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From: Harry van Haaren <harry.van.haaren@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH 2/2] igb: fix VF statistic wraparound handling macro
Date: Mon, 12 Oct 2015 17:45:33 +0100	[thread overview]
Message-ID: <1444668333-20191-3-git-send-email-harry.van.haaren@intel.com> (raw)
In-Reply-To: <1444668333-20191-1-git-send-email-harry.van.haaren@intel.com>

Fix a misinterpreatation of VF statistic macro in e1000/igb.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
---
 drivers/net/e1000/igb_ethdev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 848ef6e..e4911fc 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -246,11 +246,10 @@ static void eth_igb_configure_msix_intr(struct rte_eth_dev *dev);
 #define UPDATE_VF_STAT(reg, last, cur)            \
 {                                                 \
 	u32 latest = E1000_READ_REG(hw, reg);     \
-	cur += latest - last;                     \
+	cur += (latest-last) & UINT_MAX;          \
 	last = latest;                            \
 }
 
-
 #define IGB_FC_PAUSE_TIME 0x0680
 #define IGB_LINK_UPDATE_CHECK_TIMEOUT  90  /* 9s */
 #define IGB_LINK_UPDATE_CHECK_INTERVAL 100 /* ms */
-- 
1.9.1

  parent reply	other threads:[~2015-10-12 16:45 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-12 13:33 [dpdk-dev] [PATCH 0/2] fix vf statistic wraparound handling in macro Harry van Haaren
2015-10-12 13:33 ` [dpdk-dev] [PATCH 1/2] ixgbe: fix VF statistic wraparound handling macro Harry van Haaren
2015-10-12 14:45   ` Roger B. Melton
2015-10-12 15:41   ` Alexander Duyck
2015-10-12 16:45     ` [dpdk-dev] [PATCH 0/2] fix vf statistic wraparound handling in macro Harry van Haaren
2015-10-12 16:45       ` [dpdk-dev] [PATCH 1/2] ixgbe: fix VF statistic wraparound handling macro Harry van Haaren
2015-10-13 19:43         ` Roger B. Melton
2015-10-14 10:15         ` Roger B. Melton
2015-10-28 13:37         ` Thomas Monjalon
2015-10-12 16:45       ` Harry van Haaren [this message]
2015-10-13 19:44         ` [dpdk-dev] [PATCH 2/2] igb: " Roger B. Melton
2015-10-14 10:16         ` Roger B. Melton
2015-10-28 13:40       ` [dpdk-dev] [PATCH 0/2] fix vf statistic wraparound handling in macro Thomas Monjalon
2015-10-13 19:43     ` [dpdk-dev] [PATCH 1/2] ixgbe: fix VF statistic wraparound handling macro Roger B. Melton
2015-10-12 13:33 ` [dpdk-dev] [PATCH 2/2] igb: " Harry van Haaren
2015-10-12 15:02   ` Roger B. Melton

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